CMS recently released the 2017 ICD-10-PCS code updates and guidelines, which include changes to certain root operations. Of the updates, the most notable modifications are the addition of root operation Perfusion, and edits to the current definitions of Control and Creation.

Since the physician doesn't need to document a specific root operation, coders cannot rely solely on the terms the physician uses; thus it is important for each coder to fully understand each root operation, especially Control and Repair. Note: To access this free article, make sure you first register if you do not have a paid subscription.

Q: When a patient presents with acute respiratory failure, as well as an overdose, is it ever appropriate to assign the acute respiratory failure as principal diagnosis, since it is an acute condition that would have occasioned the admission to the hospital?